• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a scanbody (10, 10 ') as a reference for a scanner in the mouth region, comprising a fastening device (12) for attachment to a laboratory analog and / or implant (14), a preferably at least substantially cylindrical, longitudinally extending body (16), and at least one projection (18) extending at least substantially at right angles to the body (16).
    公开号:AT15364U2
    申请号:TGM50180/2016U
    申请日:2016-09-05
    公开日:2017-07-15
    发明作者:Bloier Karl
    申请人:Bloier Karl；
    IPC主号:
    专利说明:

    description
    SCAN BODY
    The invention relates to a scanbody as a reference for a scanner in the mouth area with a fastening device for attachment to an implant and / or laboratory analog and a, preferably at least substantially cylindrical, longitudinally extending body.
    When scanning oral situations, such as implants, the starting position, especially after an interruption of the scan, determined by triangulation. For this purpose, three points on surfaces of teeth are determined as a reference.
    However, this method does not work if all the teeth are removed from the jaw and / or if the distance of the teeth is greater than the optical scanning range. The scanner is no longer available for reference points. The soft tissue can not be detected correctly, especially in severely atrophied mandibles, as a clear triangulation in the mobile mucosa, the cheek or the tongue is impossible.
    An implant, ie a tooth root replacement, or a laboratory analog is detected insufficiently by a scanner. For example, Although a laboratory analogue up to the construction level, but does not or only slightly beyond. These flat structures are barely detected by the scanner.
    There are Scanbodys known which are screwed onto the implant or laboratory analog. The Scanbodys rise above the construction level and form a clear reference for the scanner. The scanbodies are recorded digitally, allowing the positions of the implants to be determined. After scanning the scan can be removed again. Thus, the scan modules are connected only for optical detection with the implant or the laboratory analog.
    The determined data can be evaluated by means of a computer program. In particular, a 3D model can be created.
    Based on these data finally the dentures can be made. The dentures, in particular a crown or bridge, for example, can be milled from a block. The creation by means of a 3D printing process is possible.
    A disadvantage of previous Scanbodys is that in non-rotation-protected implant abutments, e.g. for a bridge, a ball-head assembly or locator, a cylindrical body is used. The body has a specific height, over which the position of the implant can be determined below the mucosal level. However, the scanbody has no structure, which complicates the scanning process. In particular, problems may occur if scanning is interrupted. The scanner finds no orientation points for re-entry. The triangulation may fail, resulting in a misrepresentation.
    For rotation-protected implant abutments Scanbodys are known which have a lateral bulge or indentation. However, the bulge or indentation extends over the entire body. This can lead to gum injuries. Also, the bulge or indentation serves merely as a rotation protection and is not used as a reference for the scanner. An implant or laboratory analog can e.g. an inner square, outer square, projection or recess, whereby rotation of the scanbody is prevented by a corresponding, negative molding. This position must be reliably reproducible. Since the connection point between scanbody and implant or laboratory analogue is below the gingival level, it can not be imaged by an optical scan. Therefore, the scanbody knows a corresponding reference, e.g. a reference surface, a bulge or indentation. For example, a cylindrical scanbody having a defined, flat reference surface, which can be assigned to a certain rotation assurance area beyond doubt.
    If the Scanbodys are too far apart, they can not be detected by the scanner.
    It is therefore an object of the invention to provide a scanbody, a connecting web and a system that allows or easily a reliable scan.
    The solution of this object is achieved by devices having the features of the independent claims.
    According to the invention at least one at least substantially at right angles to the body extending projection is provided. The projection serves as a reference for the scanner. The projection allows an unambiguous assignment, so that the scan can be continued without problems even after an interruption.
    The projection does not extend over the entire length of the body. In particular, there is a free space below the projection. Gums are therefore not trapped by the scanbody, thereby avoiding injury.
    In particular, the projection, e.g. at least 1 mm, below a scan body top edge, i. above the projection, a free space is provided. In this way it is prevented that protrudes at a arranged on the projection connecting web of the connecting web on the scanbodyoberkante.
    Alternatively or additionally, the projection is narrower than the body. In particular, the diameter or cross section of the projection is smaller than the diameter or cross section of the body. The projection thus stands out from the body and is better recognized by the scanner.
    Also, material and thus cost is saved if the projection does not extend over the entire length of the body or is narrower than the body.
    The body of the Scanbody may in particular have a diameter between 3 mm and 7 mm. The scanbody is thus compatible with common implants or laboratory analogs. The term implant is to be understood broadly and includes in particular so-called prosthetic abutment parts.
    The wall thickness of Scanbodys depends on the outer diameter of the implant or laboratory analog, since these should not be exceeded, at least in the lower region. The minimum wall thickness of the scanbody material must be adhered to. Also, for certain types of attachment, e.g. a screw head of a fastening device find enough space inside.
    The scanbody may be intraorally, e.g. on implants, and / or extraorally, e.g. on laboratory analogues. Preferably, it is used intraorally to detect the conditions in the mouth immediately.
    The invention also relates to a scanbody as a reference for a scanner in the mouth region, comprising a fastening device for attachment to a laboratory analog and / or implant and a, preferably at least substantially cylindrical, longitudinally extending body. At least two projections extending at least substantially at right angles to the body are provided.
    Already two projections allow accurate detection by the scanner. In particular, the orientation can be reliably determined. The projections are preferably arranged on opposite sides of the body. It is also possible for more than two projections, in particular three, four, five, six or seven projections, to be provided.
    The projections are particularly identical in construction. Alternatively, these may be at least partially different.
    Further developments of the invention are also to be found in the dependent claims, the description and the accompanying drawings.
    According to one embodiment, three projections are provided, which are arranged in particular evenly distributed around the body. Adjacent protrusions may preferably include a 120 ° angle.
    As will be explained, the scanbodies can be connected to one another via connecting webs. If a scanbody is connected to two other scanbodys, the connecting webs occupy two of the three protrusions. However, another advantage is still available for recording. This free edge is enough to create a 3D model.
    The three projections are particularly identical in construction. Alternatively, e.g. two projections formed identically and another be formed as a conventional projection of a rotation-proof Scanbody. From the conventional projection or a conventional reference surface, the position of an implant top edge below the scanned mucosal level can be detected by a program. It can thus be calculated on the basis of the conventional projection or the reference surface on the Scanbody the orientation of the rotation protection.
    A reference surface or a conventional projection is purely optional. Thus, for example, scanbodies without rotation protection can be dispensed with. Here only the safe and / or reproducible detection of the implant top and / or tilt is required. Also, a reference surface of a prosthetic abutment can be detected.
    According to a further embodiment, at least one projection does not extend over the entire length of the body and / or is narrower than the body. So can be saved even with multiple projections material. Furthermore, the gums are not injured.
    According to another embodiment, at least one projection is formed like a knob. Nubs are well recognized by the scanner.
    In an advantageous embodiment, the projection has an at least substantially round cross-section. In principle, however, all forms are possible.
    According to a further embodiment, the projection is conically shaped and tapers towards the body. A connecting bridge can be safely picked up in this way.
    According to another embodiment, the body is conically shaped and tapers upwards. In the area of the implant or laboratory analog, the diameter preferably corresponds to the diameter of the implant or laboratory analog. Okkusal, so to the chewing surfaces, the diameter decreases.
    According to a further embodiment, the fastening device comprises a screw. The scanbody can be detachably connected to the implant or laboratory analog via the screw. Here, an existing internal thread of the implant or laboratory analogue is used.
    According to another embodiment, the screw is permanently connected to the body, in particular glued. The attachment of the scanbody is thus particularly easy.
    Alternatively, the screw is detachably connected to the body, in particular wherein the screw head rests against a stop in the lower inner region of the body. The screw is thereby introduced into the interior of the body. In the lower area of the screw head is hanging on the stop. The thread of the screw exits through a lower opening of the body and protrudes over the body.
    According to a further embodiment, the scanbody comprises a zirconium material, steel, titanium and / or a synthetic plastic, in particular PMMA, or consists thereof. The body and the projections are in particular integrally formed. Alternatively, the body and projections may also be subsequently connected together, e.g. glued, be.
    The invention also relates to a connecting web for connecting two scanbodies, wherein a first receptacle for receiving a portion of a first Scanbody and a second receptacle for receiving a portion of a second scanbody are provided.
    The connecting bridge allows an exact and error-free orientation of the scanner. Even with an interruption of the scan, the acquisition can be continued without difficulty.
    The recordings are in particular designed to clamp the sections of the scanbody. The connecting web thus holds securely on the sections and yet can be easily solved again.
    According to one embodiment, the receptacles for receiving projections of the scanbody are formed. The projections correspond to the sections of the scanbody.
    If two connecting webs are fastened to a scanbody with three protrusions, then there is still another free protrusion available for the scanning process or as a reference for the computer program.
    According to a further embodiment, the receptacles on a U-shaped cross-section. The projections can thus be safely absorbed. Also, the connecting bar can be easily removed again.
    According to a further embodiment, the images are oriented differently. This is particularly advantageous in Scanbodys, which are relatively far away from each other and / or located at different heights. The hold of the connecting web is improved here.
    However, the images can also have the same orientation, for example, Scanbodys at a small distance. In particular, the recordings need not be separated from each other, i. The recordings can be recording areas.
    Preferably, the images are oriented opposite. For example, the legs of the U-shaped sections may extend in opposite directions. The first shot can thus be e.g. from the bottom of the projection of the first Scanbody are clipped, while the second shot is clipped from above to the projection of the second Scanbody.
    According to a further embodiment, the connecting web is formed at least substantially straight. In principle, however, a curved connecting bridge is conceivable.
    According to a further embodiment, the connecting web has a scale. The scale may include symbols, e.g. Triangles, squares, circles or the like, have. Even numbers or letters are conceivable. The scanner thus has additional orientation aids.
    In particular, the scale is raised, i. this is available. This makes recognition easier for the scanner.
    According to a further embodiment, the connecting web comprises a plastic material, in particular PMMA, PEEK or HPP, and / or a metal material. Also, the connecting bridge can be made entirely of it. The connecting web is advantageously slightly elastic in order to be able to be clamped to protrusions of the scanbody. The inner width may be equal to or slightly smaller than the diameter of the projections.
    For cost reasons, a plastic material is particularly well. The connecting bridge can be created, for example, in the 3D printing process. In particular, the connecting web can be formed in one piece.
    The invention also relates to a system having at least two scanbo dys according to the invention and at least one connecting web according to the invention. Scanbodys can be connected together via the tie bar during scanning to provide reference points to the scanner. The scan result is significantly improved.
    The connecting web preferably extends parallel to the recorded projections. In particular, the connecting web can be oriented at right angles to the body of the Scanbodys, but also any angle are possible.
    The invention will now be described by way of example with reference to the drawings. 1 shows a perspective view of a first embodiment of an inventive scanbody with an implant, [0056] FIG. 2 shows a sectional view of an embodiment of a scan body according to the invention, [0057] FIG. 3 shows a perspective view of a further embodiment of an invention 5 shows a plan view of an embodiment of a connecting web according to the invention, FIG. 6 shows a sectional view of the connecting web according to FIG. 5, and [FIG. 0061] FIG. 7 shows a plan view of an embodiment of a system according to the invention made of scanbodies and connecting web.
    First, it should be noted that the illustrated embodiments are merely exemplary in nature. In particular, more or fewer projections may be provided. Also, the shape of the projections may vary. The features of one embodiment may also be arbitrarily combined with features of another embodiment.
    In Fig. 1, a scanbody 10 is shown, which can be attached via a trained as a screw 12 fastening device to an implant 14. Of the implant 14, only the upper portion is shown. Instead of an implant 14 may also be provided according to a laboratory analog.
    The scanbody 10 comprises in addition to the screw 12 a cylindrical body 16. The body 16 may optionally have a reference surface. This is especially the case with rotation-proof scanbodies. In an upper portion of the body 16, two projections 18 are provided. The projections 18 extend at right angles to the body 16, but do not extend over the entire length of the body 16. So remains below a free space.
    The projections 18 are also narrower than the body 18th
    On the basis of the projections 18, a scanner, not shown, the position and depth of the scanbody 10 can detect precisely. The scanbody 10 forms a reference which can be used to create a 3D model.
    The lower portion of the body 16 may be adapted to the shape of the implant 14. The lower end side of the scanbody 10 may be formed as a negative to the top of the implant 14. For example, the body 16 may have an outwardly or inwardly directed cone. An outwardly directed cone can be inserted into a funnel-shaped recess of the implant 14. An inwardly directed cone, however, can receive a corresponding funnel-shaped resignation of the implant 14.
    The screw 12 may be glued to the lower portion of the body 16. Alternatively, this can, as shown in Fig. 2, also be arranged detachably in the interior of the body 16.
    A screw head 20 rests on a stop 22 of the body 16. The stopper 22 narrows the opening of the body 16 and prevents the screw 12 from slipping downwards. Only the thread extends downwards and projects beyond the body 16.
    The scanbody, which is shown in Fig. 3, has three round projections 18. The projections 18 may also be formed spherical or partially spherical.
    As can also be seen in the plan view in FIG. 4, the projections 18 are distributed uniformly around the body 16. Adjacent protrusions 18 each include a 120 ° angle with each other. Optionally, a reference surface 23 can be provided, via which information about a rotation protection of the implant 14 can be displayed. The body 16 may be hollow inside. Alternatively, a solid body 16 is possible.
    Fig. 5 shows a connecting web 24 with two oppositely oriented receptacles 26. The connecting web 24 is individually shortened. Also, the connecting web may comprise only the right or left portion and have no opposite orientations.
    As can be seen in the sectional view of FIG. 6, each receptacle 26 has a U-shaped cross-section.
    At the back of each receptacle 26, a scale 28 is provided which comprises numbers. The scale 28 is optional. However, this provides further reference points for the scanner.
    In Fig. 7, a system with two Scanbodys 10, 10 'and a connecting web 24 is shown. A first U-shaped receptacle 26 is clamped from below on the projection 18 of the first Scanbody 10. The second receptacle, which is constructed analogously to the first receptacle 26 except for the orientation, is clamped from above onto a projection of the second scan module 10 '. A lateral clamping is possible in principle.
    The Scanbodys 10, 10 'are thus connected to each other via the connecting web 24. The free projections 18 and the connecting web 24 with the scale 28 serve the scanner as a reference.
    Based on the data, a 3D model can be created with the aid of a computer program. Subsequently, a denture can be formed.
    REFERENCE LIST 10, 10 'scanbody 12 screw, fixation device 14 implant 16 body 18 protrusion 20 screw head 22 abutment 23 reference surface 24 connecting bridge 26 receptacle 28 scale
    权利要求:
    Claims (19)
    [1]
    claims
    Scanbody (10, 10 ') as a reference for a scanner in the mouth region, comprising a fastening device (12) for attachment to a laboratory analog and / or implant (14), a, preferably at least substantially cylindrical, longitudinally extending body (16 ), and at least one projection (18) extending at least substantially at right angles to the body (16), wherein the projection (18) does not extend over the entire length of the body (16), in particular below a scanbody upper edge, and / or narrower than the body (16) is.
    [2]
    2. Scanbody (10, 10 ') as a reference for a scanner in the mouth area, comprising a fastening device (12) for attachment to a laboratory analog and / or implant (14), a, preferably at least substantially cylindrical, longitudinally extending body (16 ), and at least two projections extending at least substantially at right angles to the body (16).
    [3]
    3. Scanbody (10, 10 ') according to claim 2, characterized in that three projections (18) are provided, which in particular uniformly distributed around the body (16) are arranged.
    [4]
    4. scanbody (10, 10 ') according to claim 2 or 3, characterized in that at least one projection (18) does not extend over the entire length of the body (16), in particular below a Scanbodyoberkante is arranged, and / or narrower than the body (16) is.
    [5]
    5. Scanbody (10, 10 ') according to any one of the preceding claims, characterized in that at least one projection (18) is knob-like and / or has an at least substantially circular cross-section.
    [6]
    6. Scanbody (10, 10 ') according to any one of the preceding claims, characterized in that the projection (18) is conically shaped and tapers towards the body (16).
    [7]
    7. Scanbody (10, 10 ') according to any one of the preceding claims, characterized in that the body (16) is conically shaped and tapers towards the top.
    [8]
    8. Scanbody (10, 10 ') according to any one of the preceding claims, characterized in that the fastening device comprises a screw (12).
    [9]
    9. Scanbody (10, 10 ') according to claim 8, characterized in that the screw (12) inextricably connected to the body (16), in particular glued, is.
    [10]
    10. Scanbody (10, 10 ') according to claim 8, characterized in that the screw (12) is detachably connected to the body (16), in particular wherein the screw head (20) on a stop (22) in the lower inner region of the body (16).
    [11]
    11. scanbody (10, 10 ') according to any one of the preceding claims, characterized in that the Scanbody (10, 10') comprises a zirconium material, steel, titanium and / or a synthetic plastic, in particular PMMA, or consists thereof.
    [12]
    12. System with at least two scanbodies (10, 10 ') according to one of claims 1 to 11 and with at least one connecting web (24) for connecting two scanbodies (10, 10') to which connecting web (24) a first receptacle (26) for receiving a portion of a first scan body (10) and a second receptacle for receiving a portion of a second scan body (10 ') are provided.
    [13]
    13. System according to claim 12, characterized in that the receptacles (26) of the connecting web (24) for receiving projections (18) of the scanbody (10, 10 ') are formed.
    [14]
    14. System according to claim 12 or 13, characterized in that the receptacles (26) of the connecting web (24) have a U-shaped cross-section.
    [15]
    15. System according to any one of claims 12 to 14, characterized in that the receptacles (26) of the connecting web (24) have a different orientation.
    [16]
    16. System according to claim 15, characterized in that the receptacles (26) of the connecting web (24) are oriented opposite.
    [17]
    17. System according to any one of claims 12 to 16, characterized in that the connecting web (24) is formed at least substantially straight.
    [18]
    18. System according to any one of claims 12 to 17, characterized in that the connecting web (24) has a, in particular raised, scale (28).
    [19]
    19. System according to any one of claims 12 to 18, characterized in that the connecting web (24) comprises or consists of a plastic material, in particular PMMA, PEEK or HPP, and / or a metal material. For this 2 sheets of drawings
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    同族专利:
    公开号 | 公开日
    AT15364U3|2018-01-15|
    引用文献:
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    AT523132A2|2019-10-29|2021-05-15|Fürhauser Lukas Dr|SCAN BODY WITH LONG ARM|DE102007056820A1|2007-11-23|2009-06-18|Sirona Dental Systems Gmbh|Measuring body for an implant and method for creating a 3D measurement recording|
    DE202010017228U1|2010-11-29|2011-05-05|Nt-Trading Gmbh & Co. Kg|Scanbody for determining a positioning and orientation of a dental implant|
    US20140134566A1|2012-11-14|2014-05-15|Robert Lemke|Dental Prosthesis With Reference Points For Imaging When Fabricating A Denture|
    EP2842493B1|2013-08-30|2016-04-06|Zfx GmbH|Intraoral reference body|
    AT514320B1|2013-11-20|2014-12-15|Steger Heinrich|scanbody|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATGM50180/2016U|AT15364U3|2016-09-05|2016-09-05|scanbody|ATGM50180/2016U| AT15364U3|2016-09-05|2016-09-05|scanbody|
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